Improvement in te,leqrafh-soimders



dit-iisd mes @met tllllire.

Letters Patent No. 96,992, dated November 1G, 1869.

IMPROVEMENT IN TELEGRAPH-S-OUNDERS.

The Schedule referred to in these Lettera Patent and making pm o! the same.

To dllwhom. 'it may concern.-

Be it known that I, HENRY SrLI'rDoRF, of the city, county, and State of New York, have invented a new :and useful Improvement in 'leleglaphic Sounders; and

I do hereby declare the following to be a full, clear, and exact description thereof, which will enable those skilled in the art to make and use the same, referenee being had to the accompanying drawing, forming part of this specification, in which drawing- Figure 1 represents a plan or top view of this invention.

Figure 2 is a longitudinal vertical section of the same.

Similar letters indicate corresponding parts.

This invention consists in supporting the soundingbox of a telegraplxic sounder at an elevation above the base of the instrument, on one or more detached supports, in snch a manner that the effect of said sounding-box is materially improved, and that a telegraphic sounder is obtained, which gives a clear and distinct sound, enabling the operator to understand the niessagereceived without dilioulty.

In the drawing- The letter A designates the base, onwhich are supported the electro-magnets B, their armature G, the sounding-box D, and the tension-regulator E ofthe armature-spring, the whole composing the various parts of a telegraphio sounder.

In telegraphic sounders, as heretofore made, the sounding-box is fastened down directly upon the base y A, and its eect 'in increasing the volume of thesound is partially lost, since the bottom of the box, being rmly connected to the base A, is unable to partake of the vibrations due to the sound;

This defect I have overcome by placing the sounding-box D, in my sounder, at an elevation above the base A, said sounding-box being either supported on one or more columns F, or suspended from arms which might be substituted for the columns.

By these means the bottom of the sounding-box, as well as its top and sides, is free to vibrate, and if the .armature-lever C is brought down upon the anvil G,

a clear and distinct sound is produced, whereby the operator is enabled to understand the message received, without the liability of an error.

It is obvious that my improvement is applicable to telegraphie Sounders oi' every description, but it is particularly intended for main-line Sounders.

I do not claim, as my invention, the arrangement of a sounding-box, in combination with the armaturelever uffa telegraphic instrument; but.

XVhat I claim as new, and desire to secure by Letters Patent, is' y The sounding-box D, elevated on posts F, and having the anvil G secured directly on its top, and openings in its sides, to increase the sound and allow the passage of the tightening-spring, substantially as and for the purpose describedc HENRY SPLITDOHF.

XVitnesses:

W. HAUFF, E. F. KAs'rnNH unen. 

